The requirements for two-color injection molding materials and equipment are as follows:
Material compatibility: The two injection materials must be compatible with each other in terms of chemical properties and processing temperature. Generally, it is required that the melting point of the first injection material is higher than that of the second, and both materials must adhere to each other. Otherwise, delamination or unclear boundaries in the composite fabric mesh may occur.
Two-color injection molding machine: It requires a dual-barrel or dual-injection system, as well as a specialized two-color injection molding machine with a rotatable or slider-switching mold base mechanism. Common models include horizontal, vertical, and four-platen horizontal rotary machines .
